Multiple origins. Partially from Post-classical Latin emphysema (“swelling”), from Ancient Greek ἐμφυσᾶν (emphusân, “puff up”). Also borrowed from Middle French emphysema, from the same Latin source; compare French emphysème. Attested from the late 16th century.
- (Received Pronunciation) IPA(key): /ˌɛmfɪˈsiːmə/
- (General American) IPA(key): /ˌɛmfɪˈsimə/, /ˌɛmfɪˈzimə/, /ˌɛmfə-/
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- (pathology) An abnormal accumulation of air or other gas in tissues, most commonly the lungs.
- (medicine) Pulmonary emphysema, a chronic lung disease, one type of chronic obstructive pulmonary disease.
- (abnormal accumulation of air in tissues): pneumatosis